Inelastic light scattering study of hydrogen-bonded glass formers: Glycerol and ethanol

V. A. Zykova, N. V. Surovtsev

Результат исследования: Научные публикации в периодических изданияхстатья

1 Цитирования (Scopus)

Аннотация

Temperature dependences of the structural relaxation time τα(T) of two hydrogen-bonded glass formers, glycerol and ethanol, were investigated by depolarized light scattering technique. τα(T) of glycerol demonstrates a transition from the Arrhenius law at high temperatures to a non-Arrhenius behavior at TA ~ 366 K. Combination of derivative analysis results for τα(T) from light scattering and dielectric spectroscopes reveals this transition near ~ 200 K in the case of ethanol. The obtained values of TA are close to the temperatures below which the excess of the Landau-Placzek ratio, associated with the appearance of locally favored structures, was observed earlier.

Язык оригиналаанглийский
Страницы (с-по)429-434
Число страниц6
ЖурналJournal of Non-Crystalline Solids
Том471
DOI
СостояниеОпубликовано - 1 сен 2017

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